Sinusoidal pipe in 2D axisymmetric model
How to draw a wavy pipe (sinusoidal curve) in 2D axisymmetric Model?
View ArticleHow to keep irregular edges from a DEM
Hello,I am trying to build a geometry by importing a DEM and several subsurface layers for a hydrogeological model, which I have created in ArcMap. I am able to bring these surfaces into my project and...
View ArticleModeling assembly process
Hi all,I'd like to simulate an assembly process (soldering) in microelectronics packaging which follows these steps:1) A substrate and a metal lid are separately heated to temperature T1 2) The...
View ArticleBoolean geometry operation failed
Hello, I am having a problem opening my Solidworks CAD model in COMSOL. I imported the CAD model into COMSOL but it displayed error "boolean geometry operation failed". Any assistance to rectify this...
View ArticleInternal Error In Geometry Composition
The below post is related to an archived discussionSimilar to what was said in the linked post above (which hase been closed), Lately I am spending around 70% of my time fighting the software because...
View ArticleChange the geometry afterwards
Hello,I am really curious whether it is possible to change the geometry after all the parameters and variables are put in. Because currently I am defining the geometry of this model as 2D asymmetric to...
View ArticleVery Thin Piezoelectric Layer Modelling
Hello,I try to model a structure with a piezoelectric layer of just a view nm. Obviously it is only possible to add the "piezoelectric material" node to the structural mechanics interface. I tried it...
View Articlesymmetric acoustic shell structure
Hello ALL,I am trying to build an axisymmetric model with acoustic-shell interaction multi-physics. Acoustic- shell interaction is under 3D geometry. So I have to creat a 3D geometry which is using...
View ArticleAutomated selection in assembly finalization
Hi,I am working with comsol just over 2 years now and since the introduction of selections I am trying to leverage them to automate my models. However I find the functionallity so far quite limiting...
View ArticleSimulating non-periodic nanoparticle - problem.
Hello all,I am hoping to simulate a non-periodic free-floating nanostructure encapsulated entirely by silica glass. The entire structure is surrounded by a PML layer. I extract transmission and...
View ArticleModeling of axial symmetrical structures
Dear COMSOL users,I have problem while simulating axial symmetrical structures. The problem is that I have truncated cone in which the base radius is r1 and the upper radius is r2 (r2 > r1). As you...
View ArticleImprove CAD import resolution
Hi All,I'm trying to model a toroidal inductor in 3D with a rectangular cross-section. I've successfully made the CAD model, and am trying to import it into COMSOL. However, I'm getting internal error...
View ArticleRigid connector alternative for rigid body solid mechanics
Hello, I noticed that once i apply rigid domain to my 2D model in solid mechanics, the rigid connector becomes invalid. What is another way to keep the solid fixed (not let it move in x and y...
View ArticleProblems with importing Solidworks Parts to COMSOL
Hello All, I am trying to import a 3-D sketch part into COMSOL v. 5.2a but COMSOL says that the file is not compatible. My only option is to import as a mesh file. So, if anyone else has had this...
View ArticleMapped Mesh for a High Aspect Ratio Geometry
Hello,I am working on a geometry that has a very high aspect ratio and need to create mapped mesh for one of the domains and free triangular mesh for the others.I am facing couple of issues:When trying...
View ArticleThicken non-closed mesh
Hello,Im trying to import the geomtry of a gyroide into comsol. For this purpos I generate the surface of the gyrode with 'MathMod' and export it as an .stl file with the help of 'meshLab'.I'm able to...
View ArticleSnap to GRID?
Hello,most of the time, when I import designs from an *.stp files into COMSOL, the resulting domain does not have round coordinates, or corrdinates with 1 or 2 numbers after the comma. I found...
View ArticleWhat does Coordinate "System from Geometry" mean for a ellipsoid?
Hello everyone, I found several coordinate system variations. One of those is System from Geometry. What does that mean in case of selecting an ellipsoid randomly rotated in the room with this kind of...
View ArticleGas flow into chamber
Hi,I am new in using comsol. I am working on gas sensor application. I want to simulate the gas flow into the gas chamber to check the diffusion of gas inside the chamber. I read this paper entitled...
View ArticleQuestions regarding defining a geometry with variables
I recently have met a question when using COMSOL to simulate the deformation of an elastomer membrane. The elastomer membrane I am using is not a flat membrane but has a inhomogeneous surface profile....
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